Rare BOO8 Derr. *XG »P831 A1OA no.19
 
POSTAL SERVICE--U.S.
Power, John Carroll, 1819-1894. An open letter to the Postmaster General of the United States. On an improved method of addressing mail matter, by which greater accu- racy, less delay, and more prompt delivery, may be secured. By John Carroll Power. Springfield,I11. 1875.
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